... :Φ16/19MMSurface dealing & Color:plated nickel, black(resin part)Bulk package:plastic bag, outer in carton FULL SET 24-48''/70 ... 1. material : iron, zinc alloy, aluminum alloy, stainless steel, plastic , resin ,wooden, crystal 2. diameter: for the rod 16mm,19mm,22mm ... (thickness)2) 2/3 adjustable brackets3) Rings (metal or plastic)4) 2 related curtain finials5) Including screw and anchorOne set ...